﻿#region Copyright(c) Alexey Sadomov, Vladimir Timashkov. All Rights Reserved.
// -----------------------------------------------------------------------------
// Copyright(c) 2010 Alexey Sadomov, Vladimir Timashkov. All Rights Reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//   1. No Trademark License - Microsoft Public License (Ms-PL) does not grant you rights to use
//      authors names, logos, or trademarks.
//   2. If you distribute any portion of the software, you must retain all copyright,
//      patent, trademark, and attribution notices that are present in the software.
//   3. If you distribute any portion of the software in source code form, you may do
//      so only under this license by including a complete copy of Microsoft Public License (Ms-PL)
//      with your distribution. If you distribute any portion of the software in compiled
//      or object code form, you may only do so under a license that complies with
//      Microsoft Public License (Ms-PL).
//   4. The names of the authors may not be used to endorse or promote products
//      derived from this software without specific prior written permission.
//
// The software is licensed "as-is." You bear the risk of using it. The authors
// give no express warranties, guarantees or conditions. You may have additional consumer
// rights under your local laws which this license cannot change. To the extent permitted
// under your local laws, the authors exclude the implied warranties of merchantability,
// fitness for a particular purpose and non-infringement.
// -----------------------------------------------------------------------------
#endregion

using System;
using System.Xml.Linq;
using CamlexNET.Impl;
using CamlexNET.Impl.Operands;
using CamlexNET.Impl.ReverseEngeneering;
using CamlexNET.Impl.ReverseEngeneering.Caml.Factories;
using CamlexNET.Interfaces.ReverseEngeneering;
using NUnit.Framework;
using Rhino.Mocks;

namespace CamlexNET.UnitTests.ReverseEngeneering.Analyzers.TestBase
{
    internal class ReUnaryExpressionTestBase<TAnalyzer, TOperation>
        where TAnalyzer : ReNullabilityBaseAnalyzer
        where TOperation : UnaryOperationBase
    {
        internal void BASE_test_WHEN_xml_is_null_THEN_expression_is_not_valid
            (Func<XElement, IReOperandBuilder, TAnalyzer> constructor) 
        {
            var analyzer = constructor(null, null);
            Assert.IsFalse(analyzer.IsValid());
        }

        internal void BASE_test_WHEN_neither_field_ref_nor_value_specified_THEN_expression_is_not_valid
            (Func<XElement, IReOperandBuilder, TAnalyzer> constructor, string operationName) 
        {
            var xml = string.Format(
                "  <{0}>" +
                "  </{0}>",
                operationName);

            var analyzer = constructor(XmlHelper.Get(xml), null);
            Assert.IsFalse(analyzer.IsValid());
        }

        internal void BASE_test_WHEN_field_ref_without_name_attribute_specified_THEN_expression_is_not_valid
            (Func<XElement, IReOperandBuilder, TAnalyzer> constructor, string operationName)
        {
            var xml = string.Format(
                "<{0}>" +
                "    <FieldRef />" +
                "</{0}>",
                operationName);

            var analyzer = constructor(XmlHelper.Get(xml), new ReOperandBuilderFromCaml());
            Assert.IsFalse(analyzer.IsValid());
        }

        internal void BASE_test_WHEN_field_ref_specified_and_value_not_specified_THEN_expression_is_not_valid
            (Func<XElement, IReOperandBuilder, TAnalyzer> constructor, string operationName) 
        {
            var xml = string.Format(
                "<{0}>" +
                "    <FieldRef Name=\"Title\" />" +
                "</{0}>",
                operationName);

            var analyzer = constructor(XmlHelper.Get(xml), null);
            Assert.IsTrue(analyzer.IsValid());
        }

        internal void BASE_test_WHEN_expression_is_not_valid_THEN_exception_is_thrown
            (Func<XElement, IReOperandBuilder, TAnalyzer> constructor)
        {
            var analyzer = constructor(null, null);
            analyzer.GetOperation();
        }

        internal void BASE_test_WHEN_expression_is_valid_THEN_operation_is_returned
            (Func<XElement, IReOperandBuilder, TAnalyzer> constructor, string operationName, string operationSymbol)
        {
            var xml = string.Format(
                "<{0}>" +
                "    <FieldRef Name=\"Title\" />" +
                "</{0}>",
                operationName);

            var b = MockRepository.GenerateStub<IReOperandBuilder>();
            b.Stub(c => c.CreateFieldRefOperand(null)).Return(new FieldRefOperand("Title")).IgnoreArguments();
            var analyzer = constructor(XmlHelper.Get(xml), b);
            var operation = analyzer.GetOperation();
            Assert.IsInstanceOf<TOperation>(operation);
            var operationT = (TOperation)operation;
            Assert.That(operationT.ToExpression().ToString(), Is.EqualTo(
                string.Format("(x.get_Item(\"Title\") {0})", operationSymbol)));
        }
    }
}